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2010-01-20Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY ↵Naphtali Sprei1-1/+1
gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE. Instead of using the field 'readonly' of the BlockDriverState struct for passing the request, pass the request in the flags parameter to the function. Signed-off-by: Naphtali Sprei <nsprei@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09Configurable block format whitelistMarkus Armbruster1-1/+2
We have code for a quite a few block formats. While I trust that all of these formats are useful at least for some people in some circumstances, some of them are of a kind that friends don't let friends use in production. This patch provides an optional block format whitelist, default off. If a whitelist is configured with --block-drv-whitelist, QEMU proper can use only whitelisted formats. Other programs, like qemu-img, are not affected. Drivers for formats off the whitelist still participate in format probing, to ensure all programs probe exactly the same. Without that, QEMU proper would be prone to treat images with a format off the whitelist as raw when the image's format is probed. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-12Fix sys-queue.h conflict for goodBlue Swirl1-20/+20
Problem: Our file sys-queue.h is a copy of the BSD file, but there are some additions and it's not entirely compatible. Because of that, there have been conflicts with system headers on BSD systems. Some hacks have been introduced in the commits 15cc9235840a22c289edbe064a9b3c19c5f49896, f40d753718c72693c5f520f0d9899f6e50395e94, 96555a96d724016e13190b28cffa3bc929ac60dc and 3990d09adf4463eca200ad964cc55643c33feb50 but the fixes were fragile. Solution: Avoid the conflict entirely by renaming the functions and the file. Revert the previous hacks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-27kill drives_tableGerd Hoffmann1-7/+7
First step cleaning up the drives handling. This one does nothing but removing drives_table[], still it became seriously big. drive_get_index() is gone and is replaced by drives_get() which hands out DriveInfo pointers instead of a table index. This needs adaption in *tons* of places all over. The drives are now maintained as linked list. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl1-2/+1
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-13xen_disk: move sanity check to the correct placeGerd Hoffmann1-4/+5
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2009-04-25Fix compilation when x86_64 is definedBlue Swirl1-6/+12
2009-04-23Use a more natural orderblueswir11-2/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7234 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-22xen: add block device backend driver. (Gerd Hoffmann)aliguori1-0/+779
This patch adds a block device backend driver to qemu. It is a pure userspace implemention using the gntdev interface. It uses "qdisk" as backend name in xenstore so it doesn't interfere with the other existing backends (blkback aka "vbd" and tapdisk aka "tap"). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7223 c046a42c-6fe2-441c-8c8c-71466251a162